7212820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8387}}^1$

素因数の和:8439

約数の個数: 24

約数和(自身を含む): 15501024

約数和(自身を除く): 8288204

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 8387, 16774, 33548, 41935, 83870, 167740, 360641, 721282, 1442564, 1803205, 3606410, 7212820]

約数ペア:

[(1, 7212820), (2, 3606410), (4, 1803205), (5, 1442564), (10, 721282), (20, 360641), (43, 167740), (86, 83870), (172, 41935), (215, 33548), (430, 16774), (860, 8387)]